Space News

The Republic of Albania will sign the Artemis Accords during a ceremony at 12 p.m. EDT on Monday, Sept. 21, at NASA Headquarters in Washington, becoming the 73rd country signatory. NASA Deputy Administrator Matt Anderson...

Mars appears red because of iron oxides in the regolith. But it's not uniformly red. Different lighting conditions and different materials accumulated on the surface can make it appear purple, as in these images from...

Using data from the Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) observatory, astronomers have directly observed a giant stars outflow, called a stellar wind, being captured by its compact companion and provi...

UC Berkeley engineers and managers watch as the COSI (Compton Spectrometer and Imager) detector assembly is slowly raised from a table in this July 8, 2026, image. The four pieces of silver material on the top of the det...

Astronomer Sandra Chapman has found a connection between the quiet period of one solar cycle and the active period of the next. Her data shows how a critical cutoff point is the key, but the real test will be the solar m...

Week in images: 14-18 Sep 2026 Discover our week through the lens

IRVINE, Calif. and TORINO, Italy - Sept. 17, 2026 - Terran Orbital, a Lockheed Martin company and a global leader in satellite-based solutions primarily serving the aerospace and defense industries, [] The post Terran Or...

Though the spiral galaxy in this new image from the NASA/ESAHubble Space Telescopeseems serene, it hides a chaotic secret. This galaxy is NGC 4698, and it lies about 55 million light-years away in the constellationVirgo....

Though the spiral galaxy in this new image from the NASA/ESA Hubble Space Telescope seems serene, it hides a chaotic secret. This galaxy is NGC 4698, and it lies about 55 million light-years away in the constellation Vir...

A team of researchers, including those from the University of Tokyo, spotted a rare kind of planet that's unusually hot and eccentric. TOI-1355 b orbits its star, TOI-1355, which is also much hotter than our sun, in ...

A new way to accurately measure the distance between quasar pairs-the blazing, black-hole-powered centers of distant galaxies that appear side by side in space-is showing promise through University of Alberta research.

Image: Though the spiral galaxy in this new imageby the NASA/ESAHubble Space Telescopeseems serene, it hides a chaotic secret. This galaxy is NGC 4698, and it lies about 55 million light-years away in the constellation V...

Image: This Copernicus Sentinel-2 image, acquired on 25 August 2026, shows an area of the Andean Altiplano in southern Bolivia near the border with Chile.

Cosmic topology is as esoteric as cosmology can get. But a growing number of astrophysicists think it holds keys to understanding the universe on its largest scales.

APOD Science APOD APOD: 2026 September 18 - Todays APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograp...